<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box"><img alt="" src="../assets/logo.png"></div>
      <el-form ref="login_form_ref" :model="loginForm" :rules="loginForm_rules" class="login_info" label-width="0">
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-icon-test35"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" prefix-icon="iconfont icon-mima" type="password"></el-input>
        </el-form-item>
        <el-form-item>
          <div class="btn">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="reset_loginfrom">重置</el-button>
          </div>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 登录表单绑定的数据对象
      loginForm: {
        username: '',
        password: ''
      },
      loginForm_rules: {
        username: [{
          required: true,
          message: '请输入用户名',
          trigger: 'blur'
        }, {
          min: 3,
          max: 5,
          message: '长度在 3 到 5 个字符',
          trigger: 'blur'
        }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur'
          }]
      },

    }
  },
  methods: {
    reset_loginfrom () {
      this.$refs.login_form_ref.resetFields()
    },
    login () {
      this.$refs.login_form_ref.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登陆成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      }
      )
    }
  }
}

</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #ffffff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;

    img {
      background-color: #eee;
      width: 100%;
      height: 100%;
      border-radius: 50%;
    }
  }

  .btn {
    display: flex;
    justify-content: flex-end;
  }

  .login_info {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
}
</style>
